Trial reportBMC anesthesiology2025
Influence of different patient positions on erector spinae plane block spread in modified radical mastectomy: a prospective randomized comparative study.
Trial report in BMC anesthesiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Fascial plane blocks in pediatric patients.Journal of anesthesia, analgesia and critical care · 2026Review
- A narrative review on fascial plane blocks - Part A: Anatomical foundations and mechanistic insights.Indian journal of anaesthesia · 2026Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlthough the analgesic effect of erector spinae plane block (ESPB) has been proven, its efficacy may be influenced by the patient's position during the block.
methodsWe randomly allocated forty patients undergoing unilateral modified radical mastectomy (MRM) with axillary lymph node dissection to receive preoperative ESPB in sitting (Group 1) or lateral position (Group 2), and the patient was kept in position for 15 min, either in the high Fowler's or lateral position. The primary outcome was the dermatomal sensory block and radiocontrast material spread by Computed Tomography (CT) 15 min after the block. Secondary outcomes were the visual analog scale for pain (VAS), opioid consumption, patient satisfaction, and complications.
resultsThere was a significant increase in the dermatomal sensory block in Group 1 compared to Group 2 at midaxillary (confidence interval (C.I) 95% = 0.55, p-value = 0.006) and scapular lines (95% C.I = 0.50, p-value = 0.014); meanwhile, there were insignificant differences at the parasternal and midclavicular lines (p-value = 0.232 and 0.201 respectively). Early CT showed more craniocaudal contrast distribution in a higher percentage of patients in Group 1, with a higher incidence of spread to paravertebral/epidural spaces (though not statistically significant). The VAS, morphine consumption, and patient satisfaction were comparable.
conclusionThe ESPB in the sitting position provided a more significant posterolateral sensory block. The CT evidence of early paravertebral and epidural spread was observed more often in the sitting group, but without statistical significance. ESPB in both patient positions produced comparable postoperative analgesia.
trial registrationPan African Clinical Trials Registry (PACTR) (PACTR202204720116048) on 27/04/2022.
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